Bore1"Chain Size#40Hub Diameter3-1/2 inKeyway Size1/4 x 1/8 inLength Through Bore1-1/8 inMaterialCarbon SteelO.D.8-1/4 inPitch40Pitch Diameter7.963 inScrew Size5/16 inTeeth50TypeFinished Bore Type B
| Bore | 1" |
| Chain Size | #40 |
| Hub Diameter | 3-1/2 in |
| Keyway Size | 1/4 x 1/8 in |
| Length Through Bore | 1-1/8 in |
| Material | Carbon Steel |
| O.D. | 8-1/4 in |
| Pitch | 40 |
| Pitch Diameter | 7.963 in |
| Screw Size | 5/16 in |
| Teeth | 50 |
| Type | Finished Bore Type B |